Question

Which position of the object will produce a magnified virtual image, if a concave mirror of focal length 15 cm is being used? *

[02/11, 8:27 AM] Arshpreet Kaur (Shaina): Which of the following statements are correct for carbon compounds? (i) Most carbon compounds are good conductors of electricity. (ii) Most carbon compounds are poor conductors of electricity. (iii) Force of attraction between molecules of carbon compounds is not very strong. (iv) Force of attraction between molecules of carbon compounds is very strong. *
1 point
[02/11, 8:27 AM] Arshpreet Kaur (Shaina): Q.Zinc granules on treating with an acid X, form the zinc sulphate (ZnSO4) salt along with the evolution of a gas Y which burns with a pop sound when brought near to a burning candle. Identify the acid X and gas evolved Y​

Answer 1

Explanation:

1.ow, to obtain magnified and virtual image from concave mirror object should be kept between focus and pole of mirror. Since, the focal length of concave mirror is 15 cm away, thus object should be kept within 15 cm of concave mirror of reflecting surface.

2.As in general carbon forms only covalent bonds as accepting and donating four electrons is very difficult. As all are covalent compounds these are poor conductors of electricity. They do not have strong forces because covalent bond is weaker than ionic bond. Hence, optio

3.c. X- Sulphuric acid and Y- Hydrogen gas